Vacuum cleaner



FIG. 1 is a front perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left-side elevation view thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is an exploded bottom perspective view thereof showing additional unclaimed environment; and,

FIG. 9 an enlarged front perspective view of the portion encircled in FIG. 1.

The dot-dot-dash lines which encircle portions of the design and the broken lines which illustrate unclaimed portions of the vacuum cleaner form no part of the claimed design. 

CLAIM The ornamental design for a vacuum cleaner, as shown and described. 